﻿
@inproceedings{viola_learning_2005,
	title = {Learning to extract information from semi-structured text using a discriminative context free grammar},
	booktitle = {Proceedings of the 28th annual international {ACM} {SIGIR} conference on Research and development in information retrieval},
	publisher = {{ACM}},
	author = {P. Viola and M. Narasimhan},
	year = {2005},
	pages = {337}
},

@article{chan_mathematical_2000,
	title = {Mathematical expression recognition: a survey},
	volume = 3,
	number = 1,
	journal = {International Journal on Document Analysis and Recognition},
	author = {K. F. Chan and D. Y. Yeung},
	year = 2000,
	pages = {3--15}
}